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-rw-r--r--regcomp.sym19
1 files changed, 10 insertions, 9 deletions
diff --git a/regcomp.sym b/regcomp.sym
index f5450786c4..dffc03b1a0 100644
--- a/regcomp.sym
+++ b/regcomp.sym
@@ -100,19 +100,20 @@ BRANCH BRANCH, node 0 V ; Match this alternative, or the next...
EXACT EXACT, str ; Match this string (preceded by length).
EXACTL EXACT, str ; Like EXACT, but /l is in effect (used so locale-related warnings can be checked for).
-EXACTF EXACT, str ; Match this non-UTF-8 string (not guaranteed to be folded) using /id rules (w/len).
-EXACTFL EXACT, str ; Match this string (not guaranteed to be folded) using /il rules (w/len).
-EXACTFU EXACT, str ; Match this string (folded iff in UTF-8, length in folding doesn't change if not in UTF-8) using /iu rules (w/len).
-EXACTFAA EXACT, str ; Match this string (not guaranteed to be folded) using /iaa rules (w/len).
+EXACTF EXACT, str ; Match this string using /id rules (w/len); (string not UTF-8, not guaranteed to be folded).
+EXACTFL EXACT, str ; Match this string using /il rules (w/len); (string not guaranteed to be folded).
+EXACTFU EXACT, str ; Match this string using /iu rules (w/len); (string folded iff in UTF-8; non-UTF8 folded length <= unfolded).
+EXACTFAA EXACT, str ; Match this string using /iaa rules (w/len) (string folded iff in UTF-8; non-UTF8 folded length <= unfolded).
# End of important relative ordering.
-EXACTFU_SS EXACT, str ; Match this string (folded iff in UTF-8, length in folding may change even if not in UTF-8) using /iu rules (w/len).
-EXACTFLU8 EXACT, str ; Rare circumstances: like EXACTFU, but is under /l, UTF-8, folded, and everything in it is above 255.
-EXACTFAA_NO_TRIE EXACT, str ; Match this string (which is not trie-able; not guaranteed to be folded) using /iaa rules (w/len).
+EXACTFU_SS EXACT, str ; Match this string using /iu rules (w/len); (string folded iff in UTF-8; non-UTF8 folded length > unfolded).
+EXACTFLU8 EXACT, str ; Like EXACTFU, but use /il, UTF-8, folded, and everything in it is above 255.
+EXACTFAA_NO_TRIE EXACT, str ; Match this string using /iaa rules (w/len) (string not UTF-8, not guaranteed to be folded, not currently trie-able).
-EXACT_ONLY8 EXACT, str ; Like EXACT, but no strings that aren't in UTF-8 can match
-EXACTFU_ONLY8 EXACT, str ; Like EXACTFU, but no strings that aren't in UTF-8 can match
+
+EXACT_ONLY8 EXACT, str ; Like EXACT, but only UTF-8 encoded targets can match
+EXACTFU_ONLY8 EXACT, str ; Like EXACTFU, but only UTF-8 encoded targets can match
# One could add EXACTFAA8 and and something that has the same effect for /l,
# but these would be extremely uncommon